I need help with Polygons and their angles, ill fail if i dont get it done ;~;
please help me (:

Question

anonymous · Answer

attachment

campbell_st · Answer

ok... so for the 1st question 

let x be the smallest angle

then the other 3 angles are

x + 10, x + 20 and x + 30

and knowing the angles in a quadrilateral add to 360 

you have an equation

x + x + 10 + x + 20 + x + 30 = 360

so 

4x +  60 = 360

just solve for x.

campbell_st · Answer

for the 2nd question just count the sides that make the perimeter of the composite shape
 don't count the common side

anonymous · Answer

im so lost

anonymous · Answer

Would it be 75? @campbell_st

campbell_st · Answer

well the smallest angle is 75... so if each other angle inceases by 10 degrees, what are the other 3..?

anonymous · Answer

20 30 40?

anonymous · Answer

So would the answer be 165? @campbell_st

undeadknight26 · Answer

4x +  60 = 360
      - 60     -60
4x = 300
/4    /4
x = ?

undeadknight26 · Answer

I think that's how you do it el xD

anonymous · Answer

thats still 75

anonymous · Answer

i need to know what to do next

undeadknight26 · Answer

I dunno I just solved @campbell_st 's equatio

anonymous · Answer

i still dont get it i need someone to actually explain it :/

excalibur0126 · Answer

It would be 75, 85, 95, and 105. Those numbers added up would be 360.